Consider the function below. f(x)= x^3 + 2x^2 - x - 2 plot the x and y intercepts of the function

In the Figure below is shown the graph of this function. We have the following function:

The occurs when , so:

Therefore, the is the given by the point:

From the figure we have three :

So, the occur when . Thus, proving this:

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step-by-step explanation: